Finding the Fourth Proportional to 800,340,800.99, 1,200,571,748.13 and 247,699,124.75
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Solution
The fourth proportional to 800,340,800.99, 1,200,571,748.13 and 247,699,124.75 is: 371,567,425.82
Step by Step Solution
- Step 1: Write the proportion equation
800,340,800.99 : 1,200,571,748.13 = 247,699,124.75 : x - Step 2: Convert to fraction form
800,340,800.99/1,200,571,748.13 = 247,699,124.75/x - Step 3: Cross multiply
800,340,800.99x = 1,200,571,748.13 × 247,699,124.75 - Step 4: Simplify right side
800,340,800.99x = 297,380,571,204,137,088 - Step 5: Solve for x
x = 297,380,571,204,137,088/800,340,800.99 - Step 6: Final answer
x = 371,567,425.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.